Sash-fastener



Patented Dec. 1, 1891.

(No Modal.

A. ARMSTRONG.

SASH FASTENEE.

Wdns5s UNITED STATES PATENT. OFFICE.

ALICE ARMSTRONG, OF NOBLESVILLE, INDIANA.

SASH-FASTENERI SPEGIFCATION forming part of Letters Patent No. 464,413,dated Deceniber 1, 1891.

Application filed August 17, 1891.

T0 aZZ whom it may cocern:

Be it known that I, ALICE ARMSTRONG, a citizen of the United States,residing at Noblesville, in the county of Hamilton and State of Indiana,have invented certain new and useful Improvements in Sash-Fasteners; andI do hereby declare the following to be a full, clear, and exactdescription of the invention, suoh as Will enable others skilled in theart to which it apperta'ins to malte and use the same. V

Myimprovement in sash-fasteners will first be described in connectionwith the drawings, and then pointed out in the claim.

Figure 1 of the drawings is a perspective view showing my inventionapplied; Fig. 2, a vertical section thereof, and Fig. 3 a detailperspective view of the cam.

In the drawings, A represents the look-case, whose onter metallic plateet has an arc slot a, through which protrndes the stud b of 'a cam B,fulcrumed at 1') on the inside of a platespring 0. One end of the springis made fast at 0 to the plate a while the other end is bent t0 ahorizontal plane, wher it is fastened to the latch or bolt D, whichpasses throng:h a horizontal slot a in the plate a By this constructionof spring, arrangement of the cam with respect thereto, and the carrying of the arc slot a into a horizontal plane with the cam-pivot b orbelow said plane the cam holds the latch or bolt unlocked and al-Serisfl No. 402.819. (No modal.)

lowS.the window-sash to be moved up ordown.

In order to facilitate the retention of the bolt after it has beerithrown back, I may make the fiat face 19 on the oam; but it is not atall necessary.

This look may be let into the sash or window-frame, while the part inwhich the look is not placed may be provided with notches E to receivethe bolt, or the sash maybe held stationary by the friction or pressureof the bolt.

I may make the bolt and spring of one piece of metal plate or of wire.

Having thns deseribed all that is necessary to a full understanding ofmy invention, What I claim as new, and cleSire to protect by LettersPatent, is

A sash-fastener consisting of the caseA, having the arc slot a, the canaB, having stud b, protruding through said slot, and a fulcrum or pivotI), and the plate-swing O, arrangcd on a curve around the cam, fastenedat the lower end to the case, and provided on top with a horizontal boltI), the latter passing throngh the case-slot a as shown and described.

In testimony whereof I affix my signature in presence of two witnesses.

ALICE ARMSTRON G.

\Vitnessesz JOSEPH R. COX, I/IARY N. PARKER.

